1930-S $20 MS63 NGC. There do not appear to be any abrasions
that would bar this frosty Double Eagle from a near-Gem grade. In
addition to smooth features, both sides display an exactness of
strike that confirms the 1930-S as one of the more carefully
produced S-mint deliveries in this series. An interesting die
scratch (as produced) is noted in the right obverse field, and
there are several small, raised lumps within the last digit in the
date. These features are diagnostic to most extant 1930-S double
eagles. A heavily melted issue, the 1930-S is rarer than the 1929,
1931, 1931-D, and 1932 from the standpoint of total number of coins
known. Population: 6 in 63, 6 finer (11/03).(#9191) (Registry
values: P1, N28500) (NGC ID# 26GM, PCGS# 9191)

The Coinage of Augustus Saint-Gaudens is an issue-by-issue examination of these two artistically inspired series of gold coins.
Each date and mintmark is reviewed with up-to-date information, much of which has never been previously published. The book is based on
two extraordinary collections: The Phillip H. Morse collection and the Dr. and Mrs. Steven L. Duckor collection.